12123459 has 16 divisors (see below), whose sum is σ = 18036640. Its totient is φ = 8048160.

The previous prime is 12123439. The next prime is 12123467. The reversal of 12123459 is 95432121.

12123459 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12123459 - 2¹³ = 12115267 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12123439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6669 + ... + 8289.

It is an arithmetic number, because the mean of its divisors is an integer number (1127290).

Almost surely, 2^12123459 is an apocalyptic number.

12123459 is a deficient number, since it is larger than the sum of its proper divisors (5913181).

12123459 is a wasteful number, since it uses less digits than its factorization.

12123459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1907 (or 1901 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 12123459 is about 3481.8757875605. The cubic root of 12123459 is about 229.7253116426.

The spelling of 12123459 in words is "twelve million, one hundred twenty-three thousand, four hundred fifty-nine".